It will perform Read Multiple request and return atributes values.
---
src/shared/gatt-client.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++
src/shared/gatt-client.h | 7 ++++++
2 files changed, 72 insertions(+)
diff --git a/src/shared/gatt-client.c b/src/shared/gatt-client.c
index cf93d4b..4a645eb 100644
--- a/src/shared/gatt-client.c
+++ b/src/shared/gatt-client.c
@@ -1799,6 +1799,71 @@ bool bt_gatt_client_read_value(struct bt_gatt_client *client,
return true;
}
+static void read_multiple_cb(uint8_t opcode, const void *pdu, uint16_t length,
+ void *user_data)
+{
+ struct read_op *op = user_data;
+ uint8_t att_ecode;
+ bool success;
+
+ if (opcode != BT_ATT_OP_READ_MULT_RSP || (!pdu && length)) {
+ success = false;
+
+ if (opcode == BT_ATT_OP_ERROR_RSP)
+ att_ecode = process_error(pdu, length);
+ else
+ att_ecode = 0;
+
+ pdu = NULL;
+ length = 0;
+ } else {
+ success = true;
+ att_ecode = 0;
+ }
+
+ if (op->callback)
+ op->callback(success, att_ecode, pdu, length, op->user_data);
+}
+
+bool bt_gatt_client_read_multiple(struct bt_gatt_client *client,
+ uint16_t *handles, uint8_t num_handles,
+ bt_gatt_client_read_callback_t callback,
+ void *user_data,
+ bt_gatt_client_destroy_func_t destroy)
+{
+ uint8_t pdu[num_handles * 2];
+ struct read_op *op;
+ int i;
+
+ if (!client)
+ return false;
+
+ if (num_handles < 2)
+ return false;
+
+ if (num_handles * 2 > bt_att_get_mtu(client->att) - 1)
+ return false;
+
+ op = new0(struct read_op, 1);
+ if (!op)
+ return false;
+
+ op->callback = callback;
+ op->user_data = user_data;
+ op->destroy = destroy;
+
+ for (i = 0; i < num_handles; i++)
+ put_le16(handles[i], pdu + (2 * i));
+
+ if (!bt_att_send(client->att, BT_ATT_OP_READ_MULT_REQ, pdu, sizeof(pdu),
+ read_multiple_cb, op, destroy_read_op)) {
+ free(op);
+ return false;
+ }
+
+ return true;
+}
+
struct read_long_op {
struct bt_gatt_client *client;
int ref_count;
diff --git a/src/shared/gatt-client.h b/src/shared/gatt-client.h
index adccfc5..11b1f37 100644
--- a/src/shared/gatt-client.h
+++ b/src/shared/gatt-client.h
@@ -145,6 +145,13 @@ bool bt_gatt_client_read_long_value(struct bt_gatt_client *client,
void *user_data,
bt_gatt_client_destroy_func_t destroy);
+
+bool bt_gatt_client_read_multiple(struct bt_gatt_client *client,
+ uint16_t *handles, uint8_t num_handles,
+ bt_gatt_client_read_callback_t callback,
+ void *user_data,
+ bt_gatt_client_destroy_func_t destroy);
+
bool bt_gatt_client_write_without_response(struct bt_gatt_client *client,
uint16_t value_handle,
bool signed_write,
--
1.9.3
--
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